Option to upload long messages or files as a paste site link

When trying to post a long message, you currently get the option to upload the message as file.
However, most people don't want to fiddle around with downloading files, especially if its a support channel where people are voluntarily helping, and are less likely to help if it is difficult to.
My proposal is that you get more options other than posting a file, as numerous sites allow for free uploading of text. Including:

• https://gist.github.com/: 100MB Requires member (Free)
• https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)
• https://hastebin.com/ 400KB
• https://paste.ee/: 1MB as guest, 6MB as member (Free)
• https://paste.gg/: 15MB

Some of these require membership and I would guess that most of them have captcha to prevent automated use.
However, I think there is no reason why discord couldn't have integration like it does with spotify, in order to allow the user to create gists or even integrate a subscribed version.
This would be an option when the user uploads a file, or the only option if file uploads are disallowed in the given channel.